1. The Ever-Changing Earth
2.4ab
The Ever-Changing Earth

2. Starter Activity – Key words
Use the pictures to work out the key words for today’s lesson 1 2 3
PIECE
CRUST
CORE
MANTLE W
CHALLENGE
ener

3. Lesson Objective – To be able to describe the structure of the Earth
18 June 2018
Keywords: Crust, Core, Mantle, Alfred Wegner

4. Explain using Key words how could a Cadbury Creme egg could be used as a model for the structure of the Earth.
Outer Core
Made from molten nickel and iron (magnetic)
Crust
Relatively thin and rocky
Mantle
Has the properties of a solid, but can flow very slowly
Inner Core
Made from solid nickel and iron

5. What do you know already about plate tectonics?
Keywords; Crust, Core, Mantle, Alfred Wegner
What do you know already about plate tectonics?

6. Keywords; Crust, Core, Mantle, Alfred Wegner
Plate tectonics
The Earth's crust and upper part of the mantle are broken into large pieces called tectonic plates. These are constantly moving at a few centimetres each year. Although this doesn't sound like very much, over millions of years the movement allows whole continents to shift thousands of kilometres apart. This process is called continental drift

7. In groups of 4 you will receive evidence relating to Alfred Wegener.
Group Work
Group Roles
Talk Leader – It is your job to manage the discussion. Try to get all members of the group to contribute.
Make sure everyone stays on task.
Organiser – In charge of time keeping & ensuring that every one is focused on the task.
Scribe – In charge of writing down the groups ideas. Remember everyone’s ideas and answers are important.
Reporter - It is your job to manage the resources & the equipment that your group needs.
In groups of 4 you will receive evidence relating to Alfred Wegener.
Using the evidence to help you, I want you to answer the following question.

8. The question Firstly describe what his theory was.
In this question you will be assessed on using good English, organising information clearly and using specialist terms where appropriate.
Firstly describe what his theory was.
Explain what evidence there is today to support his theory.
Alfred Wegener’s theory of continental drift was initially dismissed by the world of science.
(6marks)

9. T hink about what the question is asking for
Alfred Wegener’s theory of continental drift was initially dismissed by the world of science.
S top for a second
T hink about what the question is asking for
O rganise (a simple table, flow diagram)
P en to paper
Examiners report:
“Some answers where poorly organised with large quantities of writing crossed out.”
“It was surprising how many students failed to use upper case at the beginning of a sentence.”

10. Peer assessment Indicative Content:
1-2
3-4
5-6
No relevant content
Poor SPG and not many specialist terms. No structure.
Included at least one detail from the content.
Ok SPG with a couple of mistakes, some structure.
Included at least 2 points from the content.
Good SPG with only 1 mistake and well structured.
Included 5 or more points including all specialist terms.
Indicative Content:
Described his theory that the continents were all once joined and 1 super continent: Pangaea
It was thought this happened by continental drift due to convection currents underneath the plates caused movement
Evidence, fossil evidence on matching sides of continents, seafloor spreading, shapes fit like a jigsaw

11. TRUE OR FALSE?
The Earth is made up of 8 different layers?
False

12. TRUE OR FALSE?
The outer layer of the Earth is where we live.
True

13. TRUE OR FALSE?
The Earth is made up of layers.
True

14. TRUE OR FALSE?
The outer core is magnetic and gives Earth its magnetic poles.
True

15. TRUE OR FALSE?
The temperature of the crust is 55oc
False

16. TRUE OR FALSE?
The crust is the middle section of the Earth
False

17. TRUE OR FALSE?
The mantle is made up of hard and soft rocks making it like treacle.
True

18. TRUE OR FALSE?
The core is made up of a mixture of iron and nickel, these are both metals.
True